#include <iostream>
#include <cstring>
#include <unistd.h>
#include <sys/types.h>
#include <sys/shm.h>
#include <sys/ipc.h>
#include <fcntl.h>
#include <sys/stat.h>

using namespace std;

const char *pathname = "/home/zsw/linux/shm_blog";
const int proj_id = 123456;

const int size = 4096;